Why are there no sorted containers in Python's standard libraries?

Question

Is there a Python design decision (PEP) that precludes a sorted container from being added to Python?

(OrderedDict is not a sorted container since it is

Answer 1

Python lists are ordered. If you sort them, they stay that way. In Python 2.7 an OrderedDict type was added to maintain an explicitly ordereded dictionary.

Python also has sets (a collection in which the members must be unique), but by definition they are unordered. Sorting a set just returns a list.